Supplemental heating attachment for furnaces.



J. A. ABBAMS.

SUPPLEMENTAL HEATING ATTACHMENT FOR FURNACES.

APPLICATION FILED PBB.9, 1911.

1,008,512, Patented Nov. 14, 1911.

FEE...

Eff a 11 2 Qwwwbo; wi/tmw Z ra 7 726.

COLUMBIA PLANOGRAPH co., WASHINGTON D c UNITED @TATES PATENT OFFIQE.

JOHN A. ABRAMS, OF WADSWORTH, OHIO.

fie SUPPLEMENTAL HEATING ATTACHMENT FOR FURNACES.

To all whom it may concern:

Be it known that I, JOHN A. ABRAMS, a citizen of the United States,residing at Wadsworth, in the county of Medina and State of Ohio, haveinvented certain new and useful Improvements in Supplemental HeatingAttachments for Furnaces; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in supplemental heatingattachments for furnaces.

One object of the invention is to provide a gas heated attachment ofthis character whereby a portion of the air passing through the furnaceis super-heated to an intense degree and then turned back and mixed withthe main volume of air passing through the furnace thereby greatlyincreasing the heating capacity of the latter.

Another object is to provide a supplemental heating attachment of thischaracter which is especially adapted for burning natural gas and whichis provided with a water heating coil.

With these and other objects in view, the invention consists of certainnovel features of construction, combination and arrange ment of parts aswill be more fully described and particularly pointed out in theappended claims.

In the accompanying drawings: Figure 1 is a plan view showing theapplication of the invention; Fig. 2 is a vertical sectional View of thesame on the line 22 of Fig. 1; Fig. 3 is a similar view at right anglesto Fig. 2 and on the line 3-3 of Fig. 1.

In the embodiment of the invention I provide a box or casing 1 which ispreferably of fiat rectangular shape and constructed in upper and lowersections 2 and 3. The upper edge of the lower section 3 is oifset toform a seat 4 and an attaching flange 5 for the lower edge of the uppersection, said edge of the upper section being secured to the flange 5 byscrews or other suitable fastening devices. The outer corners of theupper section 2 are preferably inclined as shown. The box is secured toone side of the furnace by fastening plates 6 and is connected with theair space of the furnace by upper and lower air conducting pipes 7 andSpecification of Letters Patent.

Application filed February 9, 1911.

Patented Nov. 14, 1911. Serial No. 607,692.

8 whereby a portion of the air from said space is conducted through thebox.

Arranged in the box is a gas radiator 9 comprising a flat box of suchsize as to provide a space all around between the same and the innerwalls of the casing 1. The radiator is supported in the casing by ahorizontally disposed supporting rod 10 which extends through theradiator and casing and has its projecting ends threaded to receivefastening nuts 11. On the rod between the ends of the radiator and theadjacent ends of the casing. are arranged spacing sleeves 12, wherebythe radiator is held in proper position in the casing. The lower end ofthe radiator is open and is provided'with a curved baffle plate 13 whichforms a reduced space through which air may enter the radiator toprovide the mess sary ventilation for the gasburner 1 1 which is in theform of a perforated tube and extends horizontally through the lowerportion of the radiator and has its ends projecting through the ends ofthe same and through the ends of the casing. On one end of the burnertube is arranged a cap 15 and on the opposite end is arranged an airmixer 16 and a cut off valve 17. On the tube 14 between the outer endsof the radiator and the adjacent inner surface of the end of the casingare arranged spacing sleeves 18 whereby the lower portion of theradiator is held in position. In one end of the radiator immediatelyabove the burner tube is arranged an opening 19 which alines with asimilar opening 20 formed in the adjacent end of the box whereby theburner may be lighted. In the upper end of the radiator is arranged avent pipe 21 which extends through the top of the casing and may connectwith the chimney or flue. If desired the attachment may be provided witha water back which is here shown and is preferably in the form of a coilor loop of pipe 22 arranged transversely through the radiator and casingas shown.

By means of a heating attachment such as herein shown and described aportion of the air from the air space of the furnace is conductedthrough the casing 1 and superheated to an intense degree and thenreturned to the air space of the furnace thus mingling with the airtherein and increasing the heat thereof whereby the capacity of thefurnace is greatly increased.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention, as defined in theappended claims.

Having thus described my invention what I claim is 1. A supplementalheating attachment for furnaces comprising a casing, means to secure thesame to the furnace, upper and lower air conducting pipes to connectsaid casing to the air space of the furnace, a gas heated radiatorarranged in said casing and having an open bottom, said radiator beingspaced from the walls of the casing, a supporting rod arranged throughthe upper portion of the radiator and through the casing, spacingsleeves on the ends of said rod whereby the radiator is held inposition, a perforated burner tube arranged through the lower portion ofthe radiator and through the side of the casing, spacing sleeves on saidtube, an air mixer on one end of the tube, a baffle plate arranged inthe open lower end of the radiator, a vent pipe connected to the upperend thereof and a water heating coil arranged through the radiator andcasing.

2. A supplemental heating attachment for furnaces comprising a casing,means to secure the same to the exterior of a furnace, upper and lowerair-conducting pipes to connect said casing with the air space of thefurnace, a radiator arranged in said casing and having an open bottom,said radiator being spaced from the walls of the casing, a supportingrod arranged through the upper portion of the radiator and through thecasing, spacing sleeves on the ends of said rod whereby the radiator isheld in position, a burner tube arranged throughthe lower portion of theradiator and through the sides of the casing, spacing sleeves on saidtube, a baifie plate arranged in the lower open end of the radiator anda vent for the radiator.

3. A supplemental heating attachment for furnaces, comprising a casingto be arranged on the exterior of the furnace, upper and lowerair-conducting pipes to connect said casing to the air space of thefurnace, a radiator supported within the casing and spaced therefrom,the bottom of said radiator being open and disposed slightly above thelower air-conducting pipe, a transversely curved baffle plate arrangedat the open bottom of the radiator and supported on the inner wall ofthe radiator whereby the air passing into the radiator through saidlower air-conducting pipe will be deflected by said curved deflectoraway from the open bottom of the radiator, a burner in said radiator anda vent for said radiator.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JOHN A. ABRAMS. lVitnesses:

JOHN O. SIcEY, \VILLIAM VVARNER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). G.

